CN100381516C - High temperature far infrared insulated energy-saving paint and method for preparing same - Google Patents
High temperature far infrared insulated energy-saving paint and method for preparing same Download PDFInfo
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- CN100381516C CN100381516C CNB200610031463XA CN200610031463A CN100381516C CN 100381516 C CN100381516 C CN 100381516C CN B200610031463X A CNB200610031463X A CN B200610031463XA CN 200610031463 A CN200610031463 A CN 200610031463A CN 100381516 C CN100381516 C CN 100381516C
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Abstract
The present invention relates to high-temperature far infrared insulated energy-saving paint and a preparation method thereof. The constitutes of the paint comprise zircon sand, aluminum oxide, kaolin, rare earth oxide, boron nitride, silica sol, phosphoric acid, water glass, methyl cellulose or carboxymethyl cellulose. The preparation method comprises: weighing stock according to proportioning; soaking process, stirring and mixing process; filtering process; barreling process. The present invention has the characteristics of broad serviceable range, high versability, favorable energy-saving effect, strong permeability, strong thermal radiation ability, high blackness which is as high as 0.97 to 0.99, high whole emissivity which can reach 0.92. the present invention is suitable for various heating devices with the temperature of 300 to 2000 DEG C. A glaze ceramic polymer can be formed on a fireproof material basal body, and thus, the heat-insulating property of the present invention is good. The high-temperature far infrared insulated energy-saving paint has a good insulating property with the film-forming insulation resistance being higher than or equal to 120 omega, and is favorable for safety production. The present invention also has the characteristics of good performance of resisting acid and base, enhanced thermal efficiency of 5 % to 10%, saved energy of 5 % to 35%, and prolonged service life of a kiln of 1 to 5 times.
Description
Technical field
The present invention relates to a kind of chemistry painting industry that is used for hot environment, belong to the far infrared energy-saving coatings field.
Background technology
Existing various far infrared energy-saving coatings major part exists that use range is wide, poor, the perviousness defect of bad of insulating property.The only suitable hot environment more than 1200 ℃ that has, for example " heat radiation energy-saving coating " of publication number CN1093384A patent of invention proposition is stick based on zircon sand, with the aluminium dihydrogen phosphate, has high heat-resistance coefficient and good thermoradiation efficiency.But this coating can only be used for high temperature stoves such as 1200～1700 ℃ smelting, chemical industry.
What have only is applicable to temperature environment below 1200 ℃, publication number CN1583905A patent of invention " the ir radiation energy-saving coatings " that propose for example, contain organic and inorganic filming substance matter such as polyvinyl alcohol, silicate, phosphoric acid salt, aqueous phenolic aldehyde, it is big to have sticking power, the characteristics that radiant ratio is stable.But this coating can only be of limited application at 1200 ℃ of following life-time service.
On the heating surface that can only be painted on various metals that has, for example " far infrared energy-saving coatings " of publication number CN1364834A patent of invention proposition can not be used for refractory material matrix.
In addition, existing various far infrared energy-saving coatings can only stick on the refractory material matrix, can not combine closely with refractory material matrix, and long easy explosion duration of service one, one-tenth piece come off.
Though the high temperature far ultrared paint that publication number CN1552779A patent of invention proposes has the coefficient of expansion that is close with metallic matrix, can strengthen ADHESION OF PAINTS intensity and heat impedance, prevent coming off of alternating hot and cold process floating coat, but adhesive power and perviousness to refractory material matrix are still not ideal enough, and insulating property are poor.
Summary of the invention
The purpose of this invention is to provide a kind of high temperature far infrared insulated energy-saving paint and preparation method thereof, accomplish that use range expands 300～2000 ℃ to, seepage force is strong, blackness is high, emittance is high, acid and alkali-resistance, heat insulation and good insulation preformance.
The composition by weight of each composition of high temperature far infrared insulated energy-saving paint of the present invention is as follows:
100～350 parts in 150～400 parts of aluminum oxide of zircon sand
50～200 parts of 150～350 parts of rare earth oxides of kaolin
0～60 part of 3～25 parts of water glass of boron nitride
SiO
20～60 part of the silicon sol of content 30%
0～50 part of the phosphoric acid of concentration 85%
4～24 parts of methylcellulose gum or carboxymethyl celluloses
Preparation method of the present invention is as follows:
1, weighs by the weight proportion of each composition and get the raw materials ready, wherein silicon sol, phosphoric acid, water glass are main solvent, refractory material matrix acid, flotation in alkaline pulp according to the client are used one or both, and methylcellulose gum or carboxymethyl cellulose are secondary solvent, and the proportioning of main and auxiliary solvent is 5-12: 1; Wherein zircon sand, aluminum oxide, kaolin, rare earth oxide, boron nitride are Powdered, granularity 185～325 orders.
2, the material of getting ready is put into the immersion cylinder, the gross weight of pressing material adds 2～4% pure water and stirs, and soak time is 8～24 hours.
3, reach soak time after, material is put into mixing tank fully stirs, till whereabouts liquid flow line uninterruptedly reaches 150mm when wooden stick mucus is sampled.
4, will mix qualified material and put in 185～325 eye mesh screens and filter, filtration time was as the criterion with under the spontaneous current about 30 minutes.
5, metering, barrelling.
Compared with the prior art, the present invention has following characteristics:
1, wide, the highly versatile of use range, energy-saving effect are good.
It is 3～2000 microns coating series that the present invention can make infrared wavelength, respectively with condition of different temperatures under be heated workpiece or fuel the infrared absorption wave band be complementary, to obtain best energy-saving effect.Therefore, coating Applicable temperature of the present invention is 300～2000 ℃, can be widely used in metal heat treatmet, various smelting, steel rolling, forging furnace, ceramic down-draft furnace, glass melter stove, annealing furnace, enamel calcining kiln, calcium carbide kiln, petrochemical industry pyrolyzer, atmospheric pressure kiln, reforming furnace, cement sintering shaft kiln and horizontal type rolling kiln, Industrial Boiler and civil boiler.
2, seepage force is strong, forms the glazed ceramic polymer on refractory material matrix, and heat-proof quality is good, and thermal radiation capability is strong.
Coating of the present invention is sprayed on the refractory material matrix at normal temperatures, can combine closely with refractory materials behind high temperature and form a kind of glazed ceramic polymer with three levels: the first layer is to infiltrate the dark penetrating layer of refractory materials the inside 2～5mm, this layer resistance to air loss is good, and heat insulation; The second layer is cellular recuperation layer; The 3rd layer is the hard glazed ceramic layer of light, insulate and does not produce glaze and drip, and produces thermal radiation.The polymer blackness is up to 0.97～0.99, and total emissivity can reach 0.92, and thermal radiation capability greatly improves, thereby has strengthened the heat exchange in the burner hearth.That is to say that the coatingsurface temperature significantly increases, and coating itself absorbs heat seldom, 90～95% heat is coated to radiate, and temperature improves 20～100 ℃ in the burner hearth thereby make, and makes the body of heater hull-skin temperature reduce by 5～25 ℃.
3, good insulation preformance, help the safety in production
Because added boron nitride among the present invention, this material has improved the insulating property of coating.After measured, film forming insulation resistance 〉=120M Ω, so good insulation preformance of the present invention, when especially being applied to electrical heater, its good insulation performance performance is guaranteed electric current leakproof in the stove, guarantees operator's life security.
4, acid-proof alkaline is good, is adapted to various acidity, alkalescence and amphoteric refractory.
After measured, coating of the present invention soaks in 10%HCL solution or in 4%NaoH solution and do not dissolve in 24 hours, indeformable, do not ftracture, therefore be adapted to various acidity, alkalescence, amphoteric refractory.
5, thermo-efficiency height, save energy.
Because paint coatings of the present invention has high radiation effect, make air-flow generation turbulent flow in the burner hearth, freezing air produces adverse current, the residence time of prolong smoke in burner hearth, combustion gas produces secondary combustion, thereby makes funnel temperature reduce about 45 ℃, reduces thermosteresis, can improve thermo-efficiency 5～10%, the energy-conservation energy 5～35%.
6, prolong 1～5 times of stove work-ing life
Refractory surface in coating of the present invention and the burner hearth is combined closely, form complete tectum, interpenetrate through behind the high temperature, the degree of depth can reach about 5mm, and thermal conductivity is little, and resistance to air loss is good, form the hard general duricrust of ceramic glaze of one deck, completely cut off direct contact the between refractory surface and the combustion gas flowing, avoided washing away and corroding of air-flow, thereby made prolong 1～5 times the work-ing life of stove.For example Hunan Lianyuan Iron ﹠ Steel Factory carries out simultaneous test on steel melting furnace, is coated with the many steel-making of spray steel melting furnace of the present invention 23 stoves, and 300 tons in every stove is counted 6900 tons, saves to be worth to reach 6,000,000 yuan.
Embodiment
Embodiment one
The preparation method is as indicated above, and the composition by weight proportioning of each composition is as follows:
240 parts in 300 parts of aluminum oxide of zircon sand
240 parts of lanthanum trioxide (la of kaolin
2O
3) 100 parts
30 parts of 10 parts of silicon sol of boron nitride
7.5 parts of 30 parts of methylcellulose gum of water glass
Embodiment two
The preparation method is identical with embodiment one, and just the composition by weight proportioning of each composition changes as follows:
350 parts in 400 parts of aluminum oxide of zircon sand
150 parts of cerium oxide (ceO of kaolin
2) 50 parts
50 parts of 3 parts of phosphoric acid of boron nitride.
Embodiment three
The preparation method is identical with embodiment one, and just the composition by weight proportioning of each composition changes as follows:
100 parts in 150 parts of aluminum oxide of zircon sand
The 350 parts of Praseodymium trioxide (P in high mountain range
R6O
11) 200 parts
60 parts of 25 parts of water glass of boron nitride
24 parts of 60 parts of methylcellulose gum of silicon sol.
Embodiment four
The preparation method is identical with embodiment one, and just the composition by weight proportioning of each composition changes as follows:
180 parts in 250 parts of aluminum oxide of zircon sand
280 parts of Neodymium trioxide (Nd of kaolin
2O
3) 150 parts
48 parts of 7 parts of neutral water glasss of boron nitride
4 parts of methylcellulose gum.
Claims (2)
1. high temperature far infrared insulated energy-saving paint is characterized in that the composition by weight of each composition is as follows:
Zircon sand 150-400 part aluminum oxide 100-350 part
Kaolin 150-350 part rare earth oxide 50-200 part
Boron nitride 3-25 part water glass 0-60 part
Silicon sol 0-60 part of SiO2 content 30%
Phosphoric acid 0-50 part of concentration 85%
Methylcellulose gum or carboxymethyl cellulose 4-24 part
Wherein silicon sol, phosphoric acid, water glass are main solvent, use one or both according to refractory material matrix acid, flotation in alkaline pulp.
2. high temperature far infrared insulated energy-saving paint preparation method according to claim 1 is characterized in that production stage is as follows:
A, weigh by the weight proportion of each composition and to get the raw materials ready, wherein silicon sol, phosphoric acid, water glass are main solvent, use one or both according to refractory material matrix acid, flotation in alkaline pulp, methylcellulose gum or carboxymethyl cellulose are secondary solvent, and the proportioning of main and auxiliary solvent is 5-12: 1; Wherein zircon sand, aluminum oxide, kaolin, rare earth oxide, boron nitride are Powdered, granularity 185-325 order;
B, the material of getting ready put into soak cylinder, the gross weight of press material adds the pure water stirring of 2-4%, and soak time is 8-24 hour;
C, reach soak time after, material is put into mixing tank fully stirs, till whereabouts liquid flow line uninterruptedly reaches 150mm when wooden stick mucus is sampled;
D, will mix qualified material and put into the 185-325 eye mesh screen and filter, filtration time was as the criterion with under the spontaneous current about 30 minutes;
E, metering, barrelling.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610031463XA CN100381516C (en) | 2006-03-30 | 2006-03-30 | High temperature far infrared insulated energy-saving paint and method for preparing same |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200610031463XA CN100381516C (en) | 2006-03-30 | 2006-03-30 | High temperature far infrared insulated energy-saving paint and method for preparing same |
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|---|---|
| CN1844277A CN1844277A (en) | 2006-10-11 |
| CN100381516C true CN100381516C (en) | 2008-04-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864442A (en) * | 2014-02-18 | 2014-06-18 | 广东中清华新能源科技实业有限公司 | High-temperature nano ceramic coating with high emissivity |
| CN103897444A (en) * | 2014-03-04 | 2014-07-02 | 北京远科宏大石油技术开发有限公司 | Lightweight high-temperature and high-emissivity ceramic paint |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102532959B (en) * | 2010-12-20 | 2014-01-29 | 上海阳山材料科技有限公司 | Far infrared powder for energy-saving coating and preparation method for far infrared powder |
| CN102219492A (en) * | 2011-05-12 | 2011-10-19 | 官明智 | Infrared radiation material, high-temperature infrared coating and production process thereof |
| CN102643074B (en) * | 2012-04-26 | 2013-09-18 | 萍乡市通宇特种陶瓷有限责任公司 | Thermal-insulation ceramic and thermal-insulation ceramic coating |
| CN102875177B (en) * | 2012-10-31 | 2014-03-12 | 淄博中硅陶瓷技术有限公司 | Infrared energy-saving coating of high-temperature kiln and preparation method thereof |
| CN103087558B (en) * | 2012-12-21 | 2016-04-20 | 山西潞安环保能源开发股份有限公司 | Boiler back end ductwork heat-insulating anti-corrosive coating and preparation method thereof and coating composition |
| CN103613962B (en) * | 2013-11-08 | 2015-07-29 | 中国科学院合肥物质科学研究院 | A kind of infrared high emissivity coating material and preparation method |
| CN104844139A (en) * | 2015-03-30 | 2015-08-19 | 佛山市新战略知识产权文化有限公司 | Far infrared energy-saving paint and preparation method therefor |
| FR3052769B1 (en) * | 2016-06-15 | 2018-07-13 | Saint-Gobain Glass France | GLASS SHEET WITH EMAIL REFLECTING INFRARED RADIATION |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127768A (en) * | 1995-01-26 | 1996-07-31 | 曾庆琳 | Energy-saving corrosion-proof high-temp. ceramic paint |
| CN1364834A (en) * | 2002-03-01 | 2002-08-21 | 迟贵庆 | Far infrared energy saving paint |
-
2006
- 2006-03-30 CN CNB200610031463XA patent/CN100381516C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127768A (en) * | 1995-01-26 | 1996-07-31 | 曾庆琳 | Energy-saving corrosion-proof high-temp. ceramic paint |
| CN1364834A (en) * | 2002-03-01 | 2002-08-21 | 迟贵庆 | Far infrared energy saving paint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864442A (en) * | 2014-02-18 | 2014-06-18 | 广东中清华新能源科技实业有限公司 | High-temperature nano ceramic coating with high emissivity |
| CN103864442B (en) * | 2014-02-18 | 2016-08-24 | 广东中清华新能源科技实业有限公司 | High emissivity high-temperature nano ceramic coating |
| CN103897444A (en) * | 2014-03-04 | 2014-07-02 | 北京远科宏大石油技术开发有限公司 | Lightweight high-temperature and high-emissivity ceramic paint |
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| CN1844277A (en) | 2006-10-11 |
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Effective date of registration: 20220907 Address after: Dahan Road, Economic Development Zone, Loudi City, Hunan Province 417000 Patentee after: Loudi Huasheng energy saving material Co.,Ltd. Address before: 417000 No. 13 East Leping street, Hunan, Loudi Patentee before: Zhou Xianting |
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